What is another word for patinas?
Pronunciation: [pˈatɪnəz] (IPA) 
The term "patinas" refers to the thin layer of discoloration or oxidation that forms on the surface of metals, wood, or other materials over time. Some synonymous terms for patinas include verdigris, which describes a greenish-blue patina that forms on copper or brass, while rust describes a reddish-brown patina on iron or steel. Tarnish is another synonym, which refers to the darkening of silver or other metal surfaces caused by exposure to air and moisture. Other terms used to describe patinas include weathering, aging, and corrosion, each of which signifies the natural changes that occur in materials as they are exposed to the elements.
